CVE-2021-20535Network attack vector

Authenticated SSRF via Report Builder requests

Published May 13, 2021 · Updated Sep 16, 2024

Server-side request forgery in IBM Jazz Reporting Service 6.0.6.1, 7.0, 7.0.1, and 7.0.2 allows remote authenticated users to send unauthorized requests. The Report Builder accepts attacker-supplied destinations and causes the server to issue requests from its network location, enabling network enumeration or related attacks. Authentication is required, and the documented impact is unauthorized server-originated requests rather than direct data modification or service interruption.

CVSS severity6.5
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in IBM Jazz Reporting Service 6.0.6.1, 7.0, 7.0.1, and 7.0.2 allows remote authenticated users to send unauthorized requests. The Report Builder accepts attacker-supplied destinations and causes the server to issue requests from its network location, enabling network enumeration or related attacks. Authentication is required, and the documented impact is unauthorized server-originated requests rather than direct data modification or service interruption.

The record

CVE
CVE-2021-20535
Published
May 13, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
Jazz Reporting Service
Classifications
CWE-918, T1090
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0.6.1
  2. Affected versionversion=7.0
  3. Affected versionversion=7.0.1
  4. Affected versionversion=7.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Jazz Reporting Serviceversion=6.0.6.1; version=7.0; version=7.0.1; version=7.0.2

Published CVSS scores

6.5IBMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery
T1090Proxy

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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